Radiotherapy for Head and Neck Cancer on One Side of the Neck

Randomized Trial of Unilateral vs. Bilateral Neck Irradiation in Head and Neck Cancer Patients Treated With Primary Surgery

Not applicable Interventional AHS Cancer Control Alberta · NCT03622164

This study is testing if giving radiation treatment only to the side of the neck with cancer can be just as safe and effective for patients with head and neck cancer, while also reducing side effects.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment175 (estimated)
Ages18 Years and up
SexAll
SponsorAHS Cancer Control Alberta Academic / other
Drugs / interventionsradiation, chemotherapy
Locations1 site (Edmonton, Alberta)
Trial IDNCT03622164 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of administering radiotherapy only to the side of the neck affected by cancer in patients with head and neck neoplasms. Traditionally, patients receive radiation on both sides of the neck, which can lead to significant side effects and impact quality of life. By randomizing participants to receive either unilateral or bilateral radiotherapy, the study aims to determine if limiting treatment to one side is safe and effective. The goal is to potentially change the standard of care to reduce unnecessary side effects for patients.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with squamous cell carcinoma of the head and neck who have undergone surgery and have no disease on the contralateral side.

Not a fit: Patients with previous radiation to the head and neck area or those with contraindications to radiation treatment may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce side effects and improve the quality of life for patients with head and neck cancer.

How similar studies have performed: There is growing evidence from other studies suggesting the safety of omitting radiotherapy on the side of the neck without disease, indicating this approach may be promising.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients with squamous cell carcinoma of the head and neck undergoing primary surgical management are eligible to participate if they meet the following eligibility criteria:

* Age ≥18
* Primary site of disease in the oral cavity, oropharynx, larynx, or hypopharynx.
* Squamous cell carcinoma confirmed by histology.
* Bilateral modified radical or selective neck dissections carried out as part of primary surgery, with \>= 10 lymph nodes removed from the contralateral neck
* The contralateral neck is pathologically negative
* Pre-surgical FDG-PET/CT scan did not show any clinically involved contralateral neck nodes.
* Patients must have the ability to read, understand, and sign an informed consent and must be willing to comply with study treatment and follow-up.

Exclusion Criteria:

* Previous radiation to the head and neck area
* Pregnancy
* Other contraindications to radiation treatment (e.g. severe connective tissue disease).

Where this trial is running

Edmonton, Alberta

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Head and Neck Neoplasmsradiotherapy
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.